Cobalt Alloy 6b,Stellite 6b Other/Similar Specs,UNS R30016,E FORU

British Specs:，American Specs: AMS 5894 Bar, Sheet, Plate，German Specs:

**Technical Data Sheet: Cobalt Alloy 6B / Stellite 6B - Other Specifications & Equivalent Grades (UNS R30016)** **1.0 Product Overview** Cobalt Alloy 6B (Stellite 6B), standardized as UNS R30016, represents a family of cobalt-chromium-tungsten superalloys with multiple international specifications and equivalent grades. This document covers the various international designations, alternative specifications, and comparable alloys that meet or exceed the performance characteristics of the standard Stellite 6B composition across different global markets and industry sectors. **2.0 Chemical Composition (Base Specification)** | Element | Content (%) | Allowable Variations | |---------|-------------|---------------------| | Co | Balance | ±1.0% | | Cr | 27.0-32.0 | European specs: 28.0-32.0% | | W | 3.0-5.0 | Japanese specs: 3.5-5.5% | | C | 0.9-1.4 | Aerospace specs: 1.0-1.4% | | Si | 1.0 max | Medical specs: 0.5 max | | Fe | 3.0 max | Nuclear specs: 2.0 max | | Ni | 3.0 max | - | | Mn | 1.0 max | - | **3.0 International Designations & Equivalent Specifications** **3.1 United States Specifications** - **UNS:** R30016 - **ASTM:** A494 (Castings), A567 (Investement Castings) - **AMS:** 5385 (Castings), 5792 (Welding Wire) - **AWS:** A5.13 (Welding Electrodes) - **MIL Spec:** MIL-R-20166 - **Proprietary Names:** Haynes Stellite 6B, Kennametal Stellite 6B **3.2 European Specifications** - **Germany:** DIN 2.4778, WNr 2.4778 - **United Kingdom:** BS HR 601 - **France:** AFNOR KC 20NWN - **Italy:** UNI 0.15C-30Cr-4W-Co - **EU Norm:** EN 10095 CoCr28W4 **3.3 Asian Specifications** - **Japan:** JIS H 5103 CCA-1 - **China:** GB/T 15008 HC-6B - **India:** IS 6491 Co-Cr-W-C - **Korea:** KS D 3702 CS-6B **4.0 Physical Properties (Standard Reference)** | Property | Metric Value | Imperial Value | Notes | |----------|--------------|----------------|-------| | Density | 8.53 g/cm³ | 0.308 lb/in³ | Consistent across specs | | Melting Range | 1290-1395°C | 2350-2540°F | Slight variations by process | | Thermal Conductivity | 14.9 W/m·K | 103.0 Btu·in/(hr·ft²·°F) | At 21°C | | Mean CTE | 14.2 × 10⁻⁶/°C | 7.9 × 10⁻⁶/°F | 20-540°C range | **5.0 Mechanical Properties Comparison** **5.1 Minimum Requirements by Specification** - **ASTM A494:** HRC 35 min, UTS 690 MPa min - **AMS 5385:** HRC 37 min, UTS 760 MPa min - **DIN 2.4778:** HRC 36 min, UTS 700 MPa min - **JIS CCA-1:** HRC 38 min, UTS 785 MPa min **5.2 Property Ranges by Manufacturing Method** - **Sand Cast:** HRC 37-42, UTS 690-830 MPa - **Investment Cast:** HRC 39-44, UTS 760-890 MPa - **Wrought:** HRC 38-43, UTS 800-950 MPa - **Powder Metallurgy:** HRC 40-45, UTS 850-1000 MPa **6.0 Heat Treatment Standards** **6.1 International Heat Treatment Practices** - **US Practice:** 1190-1230°C solution treatment - **European Practice:** 1180-1220°C with controlled cooling - **Japanese Method:** 1200-1240°C with rapid quench - **Medical Grade:** Special heat treatment for ISO 5832-4 **7.0 Industry-Specific Specifications** **7.1 Aerospace & Defense** - **Pratt & Whitney:** PWA 1100 - **GE Aviation:** C50TF15 - **Rolls-Royce:** RPS 960 - **Airbus:** AIMS 05-01-033 - **Boeing:** BMS 7-238 **7.2 Nuclear Applications** - **ASME:** Section III, Division 1 - **RCC-MR:** Design and Construction Rules - **ISO:** 9001 Nuclear Quality Assurance **7.3 Medical Applications** - **ISO 5832-4:** Implants for surgery - **ASTM F75:** Surgical implants - **FDA:** Device Master File compliant **8.0 Quality & Testing Standards** **8.1 International Testing Standards** - **Chemical Analysis:** ASTM E1473, ISO 10155 - **Mechanical Testing:** ASTM E8, ISO 6892 - **Non-Destructive Testing:** Multiple standards available - **Certification:** EN 10204 3.1/3.2, ISO 10474 **8.2 Industry Certifications** - **Aerospace:** NADCAP accreditation - **Nuclear:** NQA-1 compliance - **Medical:** ISO 13485 certification - **General:** ISO 9001 quality systems **9.0 Similar & Alternative Alloys** **9.1 Direct Equivalents** - Stellite 6 (slightly lower carbon) - Stellite 6K (higher carbon variant) - Tribaloy T-800 (alternative cobalt alloy) **9.2 Comparable Performance Alloys** - Haynes 25 (L605) - Haynes 188 - UMCo-50 - X-40 **10.0 Regional Availability & Preferences** **10.1 North American Market** - AMS specifications predominant - ASTM standards widely accepted - Military specifications for defense - Proprietary grades from major manufacturers **10.2 European Market** - DIN and EN standards preferred - Country-specific variations - CE marking requirements - RoHS and REACH compliance **10.3 Asian Market** - JIS standards in Japan - GB standards in China - Local certification requirements - Growing acceptance of international standards **11.0 Special Grades & Modifications** **11.1 Enhanced Properties Grades** - Low Inclusion Grades: For critical applications - Fine Grain Grades: Improved mechanical properties - High Purity Grades: Nuclear and medical applications - Special Heat Treatment Grades: Optimized for specific uses **11.2 Application-Specific Modifications** - **Wear Applications:** Optimized carbide structure - **Corrosion Applications:** Enhanced chromium content - **High Temperature:** Modified tungsten content - **Medical Applications:** Controlled impurity levels **12.0 Technical Documentation & Compliance** **12.1 Certification Requirements** - Country-specific certification formats - Industry-specific documentation - Customer-specific requirements - Regulatory compliance documentation **12.2 Global Compliance** - International standards recognition - Cross-border acceptance agreements - Mutual recognition arrangements - Global quality system registration This comprehensive specification guide demonstrates the global acceptance and standardization of Cobalt Alloy 6B (Stellite 6B) across multiple international markets and industry sectors. While minor variations exist between different national standards and proprietary specifications, all maintain the essential characteristics that make this alloy suitable for demanding wear, corrosion, and high-temperature applications worldwide.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2349 gallon liquid totes Special package is available on request.